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External Data Source

Source

Regular Expression
(((?<numb1>[\d\.-]+)([\s]*?)(?<oper1>(\>=|\<=|=\>|=\<|\<|\>|=){1})([\s]*?)){0,1})(?<varname>(salary|mph|kph|ph){1})((([\s]*?)(?<oper2>(\>=|\<=|=\>|=\<|\<|\>|=){1})([\s]*?)(?<numb2>[\d\.-]+)){0,1})